CAJ | 학술논문

结合已经开展的研究，对比分析了国外两种主流免费DEM数据的来源、组织方式、数据特征和下载渠道等信息。目前，中国部分的SRTM和ASTER GDEM地形高度和坡度数据均可以通过中国科学院计算机网络信息中心国际科学数据服务平台-DEM免费下载。
결합이경개전적연구，대비분석료국외량충주류면비DEM수거적래원、조직방식、수거특정화하재거도등신식。목전，중국부분적SRTM화ASTER GDEM지형고도화파도수거균가이통과중국과학원계산궤망락신식중심국제과학수거복무평태-DEM면비하재。
Combining research that has been carried out, the paper was made comparative analysis on source, organization methods, data characteristics and download channels of foreign mainstream free of DEM data. At present, topographic height and slope data of part SRTM and ASTER GDEM of the Chinese could free download through international scientific data service platform-DEM of Computer Network Information Center of Chinese Academy of Sciences.